US1101816A - Apparatus for casting metals and the like. - Google Patents

Description

G. W. SEYMOUR. US FOR CASTING METALS AND'THE LIKE. A PLIOATION FILED cow. e, 1913.

APEAEAT Patented June 30 menu s WILLIAM SEYMOUR, or

CHRISTCHURCH, New znannnr APPARATUS non onsrme METALS Ann 'I'HE L'I'KE.

Specification of Letters Patent,

Patented June 30, 13141.,

To all whom 2'2, may concern Be'.it known that I CHARLES W LLmii SEYMOUR, a citizen of t Zealand, and residing at Colombo street, Christchurch, in the Provincial District of Canterbury, in the Dominion of New Zealand, have invented certain new and useful Improvements in Apparatus for Casting Metals and the like, of which the following IS- a specification,

ings can This invention relates to apparatus used forcasting metals and more particularly for I dental castings or castings required by ew-- elers and 'rovides means whereby such castproduced in a. more expeditious manner than heretofore.

he invention consists in mechanism wherein adjustment of the various parts to suit diiierent sizes of cylinders used for casting can be performed in one operation;

the element 0 ing wherein? the bracket is pivo inunication through a pipe,

59 17, leads from a portway P in t gt bieq i and in improved means for admitting coni- 'rcssed air to the top of such cylinder for oroin the metal into the mold.

With the apparatus at present employed of chance is not eliminated, and great care is' necessary to insure good results. but by my invention the best results are obtained with a minimum of risk.

The inventioii'is illustrated in the draw- Figure 1 is a side elevation, Fig. 2 is an: end elevation partly in SECtIOII. F g. 3 is a sectional plan on A. A. 1.. Fig. 4

,JS pine end elevation illustrating a modiatio'n'. The, base plate,- 1, has a vertical standard, 2, on which is mounted a bracket, 3, ad ustnble vertically, and secured in POSltlOIl b a set screw, 4. A longer, 5, shdable upon ed at 8 to a hand lever, 9, the end of which is jointed at: 10, to a link, llfthe opposite end of said link being pivoted at 12 in the bracket, 3. two-way cook, 13 attached to the bracket s in co 2 14,, with a tank or main, containing-compressed air. An arm, 15, upon the plug of the tap s adapted to be struck and actuated by a striking rod, 16, projecting from the lever,,9. A tube, in bracket, 3, which is in communication, with lock, 13, to ;aic:ip,"l8 attached to the lower endof the ,plun er which has acentral portway, 19. A I 'cyliiier. 20, contaamng'themold, 21, wheretp be cast is placed Within e Dominion of N ew a recess fornied in the base plate and is adaptedto be closed by said cap 18, which carries in a recess a pad, 22, of asbestos for the purpose of forming a tight joint. Au arm, 23, extending from bracket, 3, supports a blow pipe, 24, 'eiiiployed for melting the metal to be cast, such blow pipe 2% being supplied with gas through a pipe 25. The blow pipe is also in communication with the compressed air supply through a pipe, 20, leading to the cock, 13. A set screw, 33, projecting into a vertical slot, 3i, in stand ard, 2, prevents rotation of the bracket.

plunger is raised by In operation the means of the lever, and the cylinder contain-- ing the mold, and above it the metal to be melted is placed within the recess in the bed plate. The blow pipe is then made to play upon and melt thenietal, the lever is then depressed, and the cap forced tightly down upon the top of the cylinder, During the descent of the plunger, the plug of the cock is turned by the striking rod, 16, engaging the arm, 15, whereby the air is shut'ofi from the blowpi 1e, and simultaneously admitted through tu e, 17 to the interior of the cyl inder, the pressure therein forcing the molten metal through a gate, 27, into the recess, 28, of the mold, a sound and accurate casting being thereby obtained. The standard has indicating markings upon it, and the bracket is adjusted relatively to marks according to the size of pressed air is tion illustrated in Fig. 4 may be made in the apparatus; a single w-y 0001;,29, instead of a two way cock being employed. A pipe, 30 connects the cock with the cap of the mold, and an arm, 31, upon the plug of the cock is adapted to be engaged by a striking rod, 32, and to cause compressed air to pass into the mold when the lever pre viously described is depressed. In this case the blowpipe is operated by a bellows in the usual way.

What I do claim and desire to secure by Letters Patent of the United States is:

In a machine (F the class described the combination of a cylinder to contain a mold, a vertical standard, a bracket longitudinally adjustable on said standard to suit the size of cylinderused, a plunger 'i'eoiprocable in said bracket, a cap on the end o f said plunger adaptedto close said cylinder, a twoone of these cylinder beway cock mounted-0n said brackhmeens for supplying compressed air to said ,c'o'ck, a blow pipe mounted on said bracket, means for supplying as'to'said blow pipe, 6 conncctihg sai blow pipe to one outlet of the two-way cock, an independent pipe connecting the other outlet of the two way cock tothe cap, for operating the plunger, and a striking rod on said lever 10 for diverting the compressed air from the" blew pipe to the cap, when the plunger descencls, for the purpose setforth.

In testimonywheree I have signed my name to thisspecification in the presence of two witnesses. v

()Philthlll?! WILLIAM SEYMOUR.

vWitnesses:

v 1E1, S J. Ham.

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